From pistachio shell-powered eco-cities to tiny houses on the moon, this spring certainly wasn't short on starry-eyed intrigue and bold ambition.

Pigs are smart, emotional animals that have lived alongside humans for thousands of years. In the Year of the Pig, here are some surprising pig facts.

For starters, it's more energy efficient than a standard door that swings.

You can reduce the amount of waste you create without much effort.

There are lots of labels designed to make you think you're buying better food. Are they reliable?

Recurrent sheens of oil in the Gulf of Mexico near the site of 2010's Deepwater Horizon oil spill have baffled researchers.

The energy-services giant will plead guilty to destroying evidence after the 2010 Deepwater Horizon oil spill, according to the U.S. Justice Department.

Scientists propose dropping poison to kill mice on the Farallon Islands, but there's concern that wildlife and water quality will suffer.

Study finds you may be better off moving your workout indoors.

Many American likely aren't aware that the air in their homes and offices may be cause for concern.

Mercury is not just hellishly hot but apparently covered in brimstone. A vast part of the planet is covered with dried lava – enough to bury the state of Tex

Famed architect Renzo Piano completes a self-sustaining micro-home named Diogene.

The dictionary's most popular word of the year has to do with waste.

Psychologists and scientists are concerned about the rising rates of suicide among children, and what the shrinking gender gap might mean.

255 top climate scientists are reiterating their conclusions on global warming in the face of increased e-mail attacks.

Wildlife underpasses and overpasses have reduced animal-related car crashes in Colorado.

Longtime eco-friendly coffee makers attempt a green solution to the waste of single servings.

Scientists are still trying to determine what happened to the levels of mercury in Utah's Great Salt Lake, which have dipped by almost 90 percent.

Jimmy Fallon is joined by Ladysmith Black Mambazo as they sing an ode to Fair Trade and Ben & Jerry's.

When you can’t properly chew or shallow, eating can be a chore, but specialty created food can help.

Many beloved matrimonial customs, from bridesmaids to the garter toss, got their start for some pretty disturbing reasons.

VOC emissions from shampoo, cleaners and paint impact air quality as much as vehicle emissions, according to a new study from NOAA.

Plus: Notes from around Hollywood.

The White House is taking a political risk: Spurn environmentalists enough times, and they might return the favor.

Crunching the numbers yields dividends, like a calculator that can measure the green score of electric cars anywhere in the country.

The social media giant has partnered with the National Center for Missing and Exploited Children to help get out the word when kids are in danger.

By taking stock of what you want from your internet experience, you can customize your time online with the slow web.

25-year-old wave runner Lindsey Russell undertook the 20-mile challenge to raise money for charity.

Mild-mannered European travel guru Rick Steves never fails to surprise.

As a partnership with a nonprofit that provides shelter to homeless families goes to show, Amazon's takeover of downtown Seattle isn't without altruism.

London, Houston and Bangkok are among the cities most vulnerable to sea level identified in a new report by London-based charity Christian Aid.

In the South Bronx, a 124-unit housing development with a rooftop farm combines low-income housing with an emphasis on healthy living and fresh food.

Paul Williams' landmark 28th Street YMCA in South L.A. emerges from a LEED Gold restoration project, historically significant identity still intact.

Holst Architecture's Bud Clark Commons project joins an eclectic assortment of notable green buildings on the 2014 AIA COTE annual top 10 list.

As Make It Right inches toward the finish line in New Orleans, the housing nonprofit unveils 5 designs that address overcrowding at Fort Peck Reservation.

How the Sahara Desert both contributes to and checks the formation of big hurricanes.

In rural stretches of Connecticut and Tennessee, two nature-surrounded retreats built for retirees.

A cylindrical concrete abode named O-Pod could squeeze into Hong Kong's scarce unclaimed space.

Assembled as a local factory, the prefab housing units will house over 200 people at 3 different sites.

Obama spurs a wave of green political advertising ... but is it just Greenwashing(ton)?

Driving a propane-fueled pickup truck

Need climate change data defined in simpler terms? It doesn't get any easier to understand than this.

The journalist is conducting a 9-month 'economic patriotism' experiment by eating nothing but French food and using only French-made products.

Meal kits aren't as bad for the environment as a trip to the grocery store for the same ingredients in terms of greenhouse gas emissions.

Starbuck's new keyboard app offers 28 coffee-inspired emojis that make words obsolete when you're planning a coffee date.

Complaints of illness and vertigo are zooming in to Apple.

These apps will help you find wines that pair with your menu, choose bottles as gifts, and keep track of the bottles you really enjoyed.

The 45-acre addition will allow the Stewarts to host tours, educational programs and offer refuge for abused and abandoned farm animals.

Conservation efforts are helping some large predators reclaim ancestral habitats, a new study finds.

Earth lost 39 million acres of tropical tree cover in 2017. That's like losing 40 football fields full of trees every minute for a year.